SNMP Vs WBEM

On SIM CMS, i need two important values of a managed node, that is system contact and system location. If i discover a managed node only through IM agents (that means SNMP), i can get this information on SIM CMS, because when you install IM agents on a managed node, it will ask you the system contact and system location, or you can specify explicitly on snmpd.conf file.

My problem is, i am not getting these values in SIM CMS if i discover a managed node only through WBEM (Linux on Itanium/HP-Unix). Is there any WBEM configuration file, or any other place where i can specify these two on the managed node(system contact/system location) ?